新路程------wlan0 连接wifi操作

/usr # ifconfig wlan0 up
==> rtl8188e_iol_efuse_patch
/usr #
/usr #
/usr #
/usr # ifconfig
eth0      Link encap:Ethernet  HWaddr 5E:F1:A1:49:56:A6
          inet addr:192.168.1.155  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:57


lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)


wlan0     Link encap:Ethernet  HWaddr 28:F3:66:F8:AC:20
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
 
 /usr # iwconfig
lo        no wireless extensions.


wlan0     IEEE 802.11bgn  ESSID:"123456"  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency:2.437 GHz  Access Point: B0:E2:35:28:14:09
          Bit Rate:72.2 Mb/s   Sensitivity:0/0
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:****-****-****-****-****-****-****-****   Security mode
:open
          Power Management:off
          Link Quality=95/100  Signal level=84/100  Noise level=0/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0


eth0      no wireless extensions.

/usr #  wpa_supplicant -Dwext -iwlan0 -C/var/run/wpa_supplicant -c/etc/wpa_supplicant.conf  -B &

链接wifi

/usr # udhcpc -i wlan0
udhcpc (v1.20.2) started
Sending discover...
Sending discover...
Sending select for 192.168.43.4...
Lease of 192.168.43.4 obtained, lease time 3600


/usr # ifconfig wlan0 192.168.43.4
/usr # ifconfig
eth0      Link encap:Ethernet  HWaddr 5E:F1:A1:49:56:A6
          inet addr:192.168.1.155  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:57


lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)


wlan0     Link encap:Ethernet  HWaddr 28:F3:66:F8:AC:20
          inet addr:192.168.43.4  Bcast:192.168.43.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:30 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2461 (2.4 KiB)  TX bytes:1358 (1.3 KiB)
 
 
/usr # ping 192.168.43.1
PING 192.168.43.1 (192.168.43.1): 56 data bytes
64 bytes from 192.168.43.1: seq=0 ttl=64 time=7.267 ms
64 bytes from 192.168.43.1: seq=1 ttl=64 time=4.245 ms

--- 192.168.43.1 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 4.245/5.756/7.267 ms


/usr # ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8): 56 data bytes
ping: sendto: Network is unreachable


/usr # route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.1.0     *               255.255.255.0   U     0      0        0 eth0
192.168.43.0    *               255.255.255.0   U     0      0        0 wlan0


/usr # route add default gw 192.168.43.1   //写默认路由的下一跳地址  默认网关一般填写192.168.x.1，网关实质上是一个网络通向其他网络的IP地址。
/usr # ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8): 56 data bytes
64 bytes from 8.8.8.8: seq=0 ttl=53 time=259.829 ms
64 bytes from 8.8.8.8: seq=1 ttl=53 time=134.150 ms

--- 8.8.8.8 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 134.150/196.989/259.829 ms




/usr # route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         192.168.43.1    0.0.0.0         UG    0      0        0 wlan0  
192.168.1.0     *               255.255.255.0   U     0      0        0 eth0

192.168.43.0    *               255.255.255.0   U     0      0        0 wlan0

wpa_supplicant.conf:

ctrl_interface=/var/run/wpa_supplicant


update_config=1


network={  


ssid="123456"  


key_mgmt=WPA-PSK


psk="123456789"


}